Home / 6,386.10-9,579.15-5,705.70

Finding the Fourth Proportional to 6,386.10, 9,579.15 and 5,705.70

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Solution

The fourth proportional to 6,386.10, 9,579.15 and 5,705.70 is: 8,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.10 : 9,579.15 = 5,705.70 : x
  2. Step 2: Convert to fraction form
    6,386.10/9,579.15 = 5,705.70/x
  3. Step 3: Cross multiply
    6,386.10x = 9,579.15 × 5,705.70
  4. Step 4: Simplify right side
    6,386.10x = 54,655,756.16
  5. Step 5: Solve for x
    x = 54,655,756.16/6,386.10
  6. Step 6: Final answer
    x = 8,558.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.